Hollow-structured amorphous Cu(OH)x nanowires doped with Ru for wide pH electrocatalytic hydrogen production

Pei Shen; Tiansheng Yang; Qichang Li; Zhi Chen; Yonglong Wang; Yunlei Fu; Jun Wan; Zexing Wu; Lei Wang

doi:10.1016/j.jcis.2022.08.128

Hollow-structured amorphous Cu(OH)_x nanowires doped with Ru for wide pH electrocatalytic hydrogen production

J Colloid Interface Sci. 2022 Dec 15;628(Pt B):1061-1069. doi: 10.1016/j.jcis.2022.08.128. Epub 2022 Aug 24.

Authors

Pei Shen¹, Tiansheng Yang², Qichang Li³, Zhi Chen³, Yonglong Wang³, Yunlei Fu⁴, Jun Wan⁵, Zexing Wu⁶, Lei Wang⁷

Affiliations

¹ Key Laboratory of Eco-chemical Engineering, Ministry of Education, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, Qingdao University of Science and Technology, Qingdao 266042, PR China; College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China.
² Cardiff University Business School (CARBS), United Kingdom.
³ Key Laboratory of Eco-chemical Engineering, Ministry of Education, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, Qingdao University of Science and Technology, Qingdao 266042, PR China.
⁴ Key Laboratory of Eco-chemical Engineering, Ministry of Education, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, Qingdao University of Science and Technology, Qingdao 266042, PR China; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China.
⁵ College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China. Electronic address: wanjundz@sohu.com.
⁶ Key Laboratory of Eco-chemical Engineering, Ministry of Education, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, Qingdao University of Science and Technology, Qingdao 266042, PR China; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China. Electronic address: splswzx@qust.edu.cn.
⁷ Key Laboratory of Eco-chemical Engineering, Ministry of Education, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, Qingdao University of Science and Technology, Qingdao 266042, PR China; College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China. Electronic address: inorchemwl@126.com.

PMID: 36049282
DOI: 10.1016/j.jcis.2022.08.128

Abstract

Developing efficient and stable catalysts for electrocatalytic hydrogen evolution reaction (HER) with low overpotential is the key point to realizing large-scale hydrogen commercialization. Herein, Ru doped amorphous hollow copper hydroxide nanowires on copper foam (Ru-Cu(OH)_x/CF) is prepared by surface chemical oxidization and following solvothermal process. The hollow 3D nanowire structure can provide abundant accessibility active sites, promote electrolyte in filtration and facilitate gas diffusion in the process of the electrochemical reaction. Then, the as-synthesized Ru-Cu(OH)_x/CF electrocatalyst exhibits impressive electrocatalytic performance for HER with 45, 80 and 50 mV to drive 10 mA cm^-2 in 1.0 M KOH, 1.0 M phosphate-buffered saline (PBS) and 0.5 M H₂SO₄, respectively, with remarkable long-term stability. Moreover, sustainable energies can power the two-electrode setup with amounts of hydrogen generation. The strategy may be particularly beneficial to explore simple synthesis and high-performance catalysts for HER.

Keywords: Electrocatalysis; Hollow-structure; Hydrogen evolution reaction; Nanowire.

MeSH terms

Copper
Hydrogen
Hydrogen-Ion Concentration
Nanowires*
Phosphates

Substances

Copper
Hydrogen
Phosphates